Answer:
Mammals, insects, fish and plants all have different systems of exchanging gas. For mammals we breathe into our lungs, for fish they use gills and insects use spiracles.
Explanation:
hope it kind of helps sorry if it doesn't
Answer:
Hypothesis
Explanation:
Since the problem of the research has been already defined, the next step is to formulate a hypothesis.
This is a clear statement highlighting the main idea or purpose of the scientific research. In this case our hypothesis could be:
The way in which information is presented affects student interest and memory of the material.
<span>An element is a pure substance that cannot be broken down into anything simpler by physical or chemical means.</span>
A force is a push or a pull. When one object pushes or pulls another object, you say that the first object is exerting a force on the second object.
